don't pass argc in getopt32, it's superfluous

(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes
   text    data     bss     dec     hex filename
 773469    1058   11092  785619   bfcd3 busybox_old
 772644    1058   11092  784794   bf99a busybox_unstripped

diff --git a/console-tools/setconsole.c b/console-tools/setconsole.c
index a9bbc78..32218ae 100644
--- a/console-tools/setconsole.c
+++ b/console-tools/setconsole.c
@@ -27,7 +27,7 @@
 #if ENABLE_FEATURE_SETCONSOLE_LONG_OPTIONS
 	applet_long_options = setconsole_longopts;
 #endif
-	flags = getopt32(argc, argv, "r");
+	flags = getopt32(argv, "r");
 
 	if (argc - optind > 1)
 		bb_show_usage();